package com.example.liumuyao.menudialogtest_412lmy;

import android.content.DialogInterface;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.EditText;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {
    private TextView tvinfo,tvmenu;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        init();
    }

    private void init() {
        tvinfo = (TextView)findViewById(R.id.textView);
        tvmenu = (TextView)findViewById(R.id.textView2);
    }

    //创建选项菜单和子菜单
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        MenuInflater inflater = getMenuInflater();
        inflater.inflate(R.menu.main,menu);
        return true;
    }
    //响应选项菜单和子菜单
    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()){
            case R.id.menu1:tvinfo.setText("菜单1");
                showdialog();
                break;
            case R.id.menu2:tvinfo.setText("菜单2");
                break;
            case R.id.menu3:tvinfo.setText("菜单3");
                break;
            case R.id.menu4:tvinfo.setText("菜单4");
                break;
            case R.id.menu5:tvinfo.setText("菜单5");
                break;
            case R.id.menu6:tvinfo.setText("菜单6");
                break;
        }
        return super.onOptionsItemSelected(item);
    }
    //创建并显示对话框
    private void showdialog() {
        //动态加载布局
        final View view = getLayoutInflater().inflate(R.layout.dialoglayout,null);
        AlertDialog dialog = new AlertDialog.Builder(this)  //步骤一
        .setTitle("对话框标题")                        //步骤二
        .setIcon(R.mipmap.ic_launcher)                //---3
        .setView(view)                                 //----4
        .setPositiveButton("确定", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                //确定按钮操作
                EditText et = (EditText)view.findViewById(R.id.editText);
                String str = et.getText().toString();
                tvinfo.setText(str);
            }
        })
                .setNegativeButton("取消", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        //取消按钮操作
                    }
                })
                .create();                              //-----6
        dialog.show();  //-------6显示
    }
}
